INDEX 



New genera and species of fossils are in black-face type ; synonyms are in 

 italics ; pages on which generic or specific descriptions occur are in black-face 

 type. 



Pages on which rocks receive petrographic description or minerals crystallo- 

 graphic description are in black-face type. 



Aceraceae 155, pi. xxix 



Acer trilobatum 155, 161, 162, pi. xxrx 



Acila decisa 105, pi. ix 



Actinolite-schist, Gold Creek 65 



JEsculus arctica 8, 155-156, pi. xxx 



Alaska, map pi. I 



Alaska Peninsula, Chichagof Peak pis. 



VII, VIII 



fossils of Chichagof Cove 99-111, 



pis. ix, x 

 fossils of Kukak Bay 149-162, pis. 



XXII- XXXIII 



geology about Chichagof Cove 

 69-88 



Mount Pavlof frontispiece 



Mount Shishaldin pi. in 

 Alaska-Treadwell mine 59-66 

 Albite, Treadwell mine 92 

 Albite-diorite, Treadwell mine 63 

 Aleutian Islands 45 

 Alkali-syenite-porphyry, Chichagof 



Cove 82-84 

 Alnus corylifolia 155, 160, 162 



species 155, pis. xxvm, xxxm 

 Alpine Trias, Cold Bay 46 



Queen Charlotte Islands 45 

 Ammonites biplex 127 



wosnessenskii 127 

 Amphibolite, Annette Island 16 



Hubbard Glacier 23 



Port Clarence 44 

 Ampullaria crassatina no 

 ? Ampullina crassatina 1 10 



Analysis, trachyte of St. Matthew 



Island 35 

 Andesite, Bogoslof Island 30, pi. iv 



St. Matthew Island 36 

 Andesite, augite- 29, 36, 37, 70 



augite-hypersthene- 70 



biotite- 43 



biotite-augite- 42 



biotite-hornblende- 37 



hornblende- 38, 43 

 Andromeda grayana 157, 162 

 Annelid tube 119-120 

 Annette Island, geologic section 15 

 Annulata, fossil 119, 121 

 Aplite, College Fiord 51 



Glacier Bay 20 



Gold Creek 65 



Lowe Inlet 15 



Plover Bay 43 



St. Lawrence Island 41 



St. Matthew Island 35 



Skagway 22 

 Aplite, diorite- 86 

 Apollo gold mine 71 

 Argillite 45 

 Arcestes gabbi 45 

 Arkose, Annette Island 15, 16 



Wrangell 16, 17 

 Arthraria 129 

 Arthrodendron 138 



diffusum 138-139, pi. xrv 

 Astarte borealis 121 

 Astoria Group 112 



163 



